/Engine/Plugins/Media/PixelStreaming/Source/PixelStreaming/Public/PixelStreamingDelegates.h
A new data channel has been opened
typedef TMulticastDelegate_ThreeParams< void, [FString](API\Runtime\Core\Containers\FString), [FPixelStreamingPlayerId](API\Plugins\PixelStreaming\FPixelStreamingPlayerId), [FPixelStreamingDataChannel](API\Plugins\PixelStreaming\FPixelStreamingDataChannel) * > FDataChannelOpen